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Muscle, Ligaments and Tendons Journal

Low revision rate and excellent subjective outcome of primary ACL repair with a minimum follow-up of 5 years

Original Article, 185 - 190
doi: 10.11138/mltj/2018.8.2.185
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Abstract
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Introduction: Due to limitations of ACL reconstruction, primary ACL repair has recently regained research interest. Although abandoned in the past, primary repair with conservation of the original ligament demonstrates considerable advantages compared to reconstruction.
We hypothesized that early repair, strictly limited to patients with a proximal ACL rupture and excellent tissue quality of the remaining ACL stump, would lead to equal revision rates and subjective outcomes as reported for ACL reconstruction after a minimum of 5 years.
Methods: In this questionnaire study, patients who had a primary ACL repair between 2002 and 2009 were invited to participate. Besides any potential revision surgery, the Tegner activity scale and the Knee Injury and Osteoarthritis Outcome Score were included in the evaluation.
Results: Out of 1912 patients who had ACL related surgery during the observation period, 221 (11.4%) had a primary ACL repair. 60 patients (61 knees) were available for follow-up. In 2/61 (3.3%) cases ACL revision surgery was performed and one patient had meniscus surgery of the affected side. The median Tegner activity scale was 6 (range, 3 to 10). The mean KOOS subscores were 88.8% (Function/Sports), 86.6% (Quality of life), 94.6 (Symptoms), 94.0 (Pain) and 97.0 (Activities of Daily Living).
Conclusion: Primary ACL repair, strictly limited to proximal ruptures with good tissue quality leads to revision rates and subjective outcome comparable to ACL reconstruction. Level of evidence: IV.

Vol. 8 (No. 4) 2018 October/December

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